參天大木，始於生，終至成。如是遂有日居焉？而後才能水木榮諸？？此方謂『扶桑』── 意在春蠶吐絲哉 ── ！！

如果用錯了鑰匙，再簡單的鎖也打不開；就算撬開了鎖，難到事物必然一樣的嗎？？

曾經人們希望『○』，然後冀盼『□』，接續期待『☆』，祇不濄人類的『科學』也許也僅能專著於『眼見』，那個『精神』卻日漸地虛無飄渺了吧！

現象顯示『意義的消逝』和『快樂之伏藏』是『相同的一面』，那麼所謂『背面』又到底有些什麼的呢？宛如『天下是天下人的天下』，任誰都無法管之天下吧！怎就不該即時行樂的呢？麻煩在於『無所得故』，始言及社會未來，世代傳承……。縱千百萬年之歷史總歸一詞 ── 終究人性 ──！？

『無有』沒法整理，『眾集』不耐其繁，『 Know-How 』多了，或許必將會產生『物以類聚』── 物件描述法 ── 的『 What’s What 』之群分的事！！這當真就是『 Device Tree 』自將之興起的道理嗎？？

 

/dts-v1/;

/include/ "bcm2709.dtsi"

/ {
        compatible = "brcm,bcm2709";
        model = "Raspberry Pi 2 Model B";

        aliases {
                soc = &soc;
                spi0 = &spi0;
                i2c0 = &i2c0;
                i2c1 = &i2c1;
                i2s  = &i2s;
                gpio = &gpio;
                intc = &intc;
                leds = &leds;
                sound = &sound;
        };

        sound: sound {
        };
};

&gpio {
        spi0_pins: spi0_pins {
                brcm,pins = ;
                brcm,function = ; /* alt0 */
        };

        i2c0_pins: i2c0 {
                brcm,pins = ;
                brcm,function = ;
        };

        i2c1_pins: i2c1 {
                brcm,pins = ;
                brcm,function = ;
        };

        i2s_pins: i2s {
               brcm,pins = ;
               brcm,function = ; /* alt0 */
        };
};

&spi0 {
        pinctrl-names = "default";
        pinctrl-0 = <&spi0_pins>;;

        spidev@0{
                compatible = "spidev";
                reg = ; /* CE0 */
                #address-cells = ;
                #size-cells = ;
                spi-max-frequency = ;
        };

        spidev@1{
                compatible = "spidev";
                reg = ; /* CE1 */
                #address-cells = ;
                #size-cells = ;
                spi-max-frequency = ;
        };
};

&i2c0 {
        pinctrl-names = "default";
        pinctrl-0 = <&i2c0_pins>;
        clock-frequency = ;
};

&i2c1 {
        pinctrl-names = "default";
        pinctrl-0 = <&i2c1_pins>;
        clock-frequency = ;
};

&i2s {
        #sound-dai-cells = ;
        pinctrl-names = "default";
        pinctrl-0 = <&i2s_pins>;
};

&leds {
        act_led: act {
                label = "led0";
                linux,default-trigger = "mmc0";
                gpios = <&gpio 47 0>;
        };

        pwr_led: pwr {
                label = "led1";
                linux,default-trigger = "input";
                gpios = <&gpio 35 0>;
        };
};

/ {
        __overrides__ {
                i2s = <&i2s>,"status";
                spi = <&spi0>,"status";
                i2c0 = <&i2c0>,"status";
                i2c1 = <&i2c1>,"status";
                i2c0_baudrate = <&i2c0>,"clock-frequency:0";
                i2c1_baudrate = <&i2c1>,"clock-frequency:0";

                act_led_gpio = <&act_led>,"gpios:4";
                act_led_activelow = <&act_led>,"gpios:8";
                act_led_trigger = <&act_led>,"linux,default-trigger";

                pwr_led_gpio = <&pwr_led>,"gpios:4";
                pwr_led_activelow = <&pwr_led>,"gpios:8";
                pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
        };
};